WW2 12 Small Ships Coy

I am looking for information re John Francis Stone, Service Nos. 41360/SX33889 who was born on 7th September, 1926, enlisted on 2nd November, 1044 and served in the 12 th Small Ships Coy of the Royal Australian Engineers in WW2. I am also looking for information about his unit and the type of duties it was involved in and where.